--- product_id: 18236172 title: "Celsius Mammoth 20F" brand: "teton sports" price: "£186.68" currency: GBP in_stock: true reviews_count: 13 category: "Teton Sports" url: https://www.desertcart.co.uk/products/18236172-celsius-mammoth-20f store_origin: GB region: United Kingdom --- # Compression sack - easy packing 94x62 in - king-size comfort 20°F temp rating - cozy warmth Celsius Mammoth 20F **Brand:** teton sports **Price:** £186.68 **Availability:** ✅ In Stock ## Summary > 🔥 Sleep like royalty under the stars with Mammoth-sized warmth and comfort! ## Quick Answers - **What is this?** Celsius Mammoth 20F by teton sports - **How much does it cost?** £186.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/18236172-celsius-mammoth-20f) ## Best For - teton sports enthusiasts ## Why This Product - Trusted teton sports brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Engineered Warmth:** Rated for 20°F with dual-layer insulation and draft tubes to lock in heat and keep cold air out all night long. - • **Soft, Cozy Interior:** Poly-flannel lining delivers unmatched softness and comfort, turning rough nights outdoors into restful escapes. - • **Effortless Portability:** Includes a durable compression sack designed for quick stuffing, making packing up after your adventure hassle-free. - • **Spacious Luxury for Two:** Spread out or snuggle up in a sleeping bag larger than a queen mattress—ultimate comfort for couples or family camping. - • **Trusted Outdoor Companion:** Backed by TETON Sports’ limited lifetime warranty and responsive support, so you can camp confidently. ## Overview The Celsius Mammoth 20F by TETON Sports is a premium double sleeping bag measuring 94x62 inches, designed for ultimate comfort and warmth down to 20°F. Featuring a soft poly-flannel lining, dual-layer insulation, and draft tubes, it ensures cozy nights for two. Its included compression sack simplifies packing, making it ideal for car camping. Built with durable polyester and backed by a limited lifetime warranty, this sleeping bag is a spacious, warm, and reliable choice for serious outdoor enthusiasts. ## Description Gigantic. Enormous. Jumbo. Also hugely comfy, snuggle-worthy, and soft-to-the-touch. That’s how to describe the Mammoth Double Sleeping Bag by TETON Sports. This bag has been thoughtfully designed so you get your best night’s sleep in nature. Oh, and in case you forgot, it’s really, really big. In fact, it’s so colossal that we’ve included a special how-to video on our website to show users how to get the bag back in the sack. Review: Roomy, Warm, Comfy - and bulky (but good for car camping) - Lots of room, nice and warm, and very comfy interior! We bought this for a 4 day camping trip in November, and it worked great! My wife actually questioned why we hadn't bought a double sleeping bag sooner. It is big, so be aware, this isn't something you're going to backpack in - it is strictly for car camping. It has a nice compression bag that it comes in, but since we have a camping trailer, we put it into a large (108 qt) Plano tote; it fills the entire tote up. Warm enough that I had to sleep with it unzipped most of the night (we bought the +20 temp). I have no complaints, and I've been a camper my whole life. Review: THIS IS ONE AWESOME SLEEPING BAG. BUT.... - I'm really glad with this purchase. It has mega room. It's very warm. Haven't tried it at 20 degree rating yet, I'm confident base on how it did on a few 30+ degree nights. The inside feels very cozy. Regarding the padded neck baffle, this is strictly for when using as single individual bags when separated from being a double. But it didn't seem bothersome at all to us using as a double, which is mainly why I bought it. So everything about this bag is absolutely great....BUT.... Unless your name is Bruce Banner and you're in your anger state, don't count on getting this thing back into it's storage bag easily. In fact, it's also pretty tough getting out initially too. But since I didn't buy it for how easy or not it is to roll back up into it's storage bag, I simply bought a larger draw-string duffel sack to put it in, and that did the trick, very easy with no hassle. I guess I could also unzip them, and store them as individual bags like the one I previously used for many years. ## Features - polyester - Made in the USA or Imported - UNMATCHED COMFORT: These Queen size Sleeping Bags are the ultimate camping experience with a soft poly-flannel lining. The bag unzips on each side, It’s perfect for family camping trips. With dual-layer construction you'll be comfortable and warm - FIT FOR A KING AND QUEEN: With a spacious 94x62 inches (239x157 cm) size, our double camping sleeping bags are larger than a queen-sized mattress, giving you plenty of room to spread out or snuggle up with the Family. For Adults and kids - EASY TO PACK: Say goodbye to the struggle of rolling up your sleeping bag. TETON Sports provides a durable compression sack that you stuff your sleeping bag into easily. Just stuff it in from the bottom. Check out our instructional videos for more tips - STAY WARM ALL NIGHT: Sleeping on a cloud and staying warm is the best of both worlds. The zipper and shoulder draft tubes keep warm air in and cold air out. You'll be cozy all night. Recommend a TETON Sports insulated camp pad under any sleeping bag - TETON SPORTS PROMISE: Reach out to our AMAZING product support team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care of and back OUTDOORS ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B014KG7I6S | | Additional Features | Water resistant | | Age Range Description | Adult | | Best Sellers Rank | #14,528 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #51 in Camping Sleeping Bags | | Brand | TETON Sports | | Brand Name | TETON Sports | | Closure Type | Zipper | | Color | Blue | | Customer Reviews | 4.5 out of 5 stars 1,088 Reviews | | Fabric Type | polyester | | Fill Material Type | SuperLoft Elite Hollow Fiber | | Global Trade Identification Number | 00817354010988 | | Included Components | Sleeping Bag, Stuff Sack | | Item Dimensions L x W | 94"L x 62"W | | Item Type Name | Sleeping Bag | | Item Weight | 14 Pounds | | Manufacturer | TETON Sports | | Manufacturer Part Number | 109 | | Material | Polyester Taffeta | | Maximum Height Recommendation | 6 Feet | | Model Number | 109 | | Occupancy | 2 Person | | Seasons | 3 Seasons | | Shape | Rectangular | | ShellMaterial | Canvas | | Size | Mammoth 20F | | Sport Type | Camping,Hunting | | Temperature Rating | +20F | | Thermal Resistance | 2.5 Watts per Meter per Degree Celsius | | UPC | 817354010988 | | Warranty Description | Limited Lifetime Warranty - TETON Sports strives to manufacture the best possible products for our customers. Our limited lifetime warranty covers products against defects in materials or workmanship. This warranty is cheerfully extended to the original owner only and excludes normal wear and tear (e.g., zippers that wear out after extended use) or misuse. Please follow care instructions. If, afte… | ## Product Details - **Age Range (Description):** Adult - **Brand:** TETON Sports - **Color:** Blue - **Material:** Polyester Taffeta - **Occupancy:** 2 Person - **Seasons:** 3 Seasons - **Shape:** Rectangular - **Special Feature:** Water resistant - **Sport:** Camping,Hunting - **Temperature Rating:** +20F ## Images ![Celsius Mammoth 20F - Image 1](https://m.media-amazon.com/images/I/71YFazSRA8L.jpg) ![Celsius Mammoth 20F - Image 2](https://m.media-amazon.com/images/I/71Tm9iUbYZL.jpg) ![Celsius Mammoth 20F - Image 3](https://m.media-amazon.com/images/I/71bWQT+KBBL.jpg) ![Celsius Mammoth 20F - Image 4](https://m.media-amazon.com/images/I/819bpjjV92L.jpg) ![Celsius Mammoth 20F - Image 5](https://m.media-amazon.com/images/I/81umgg+zfCL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Does it unzip from both side?** A: I had to unpack it to find out. my Teton actually has three zippers. the first unzips the right side, the second unzips the left side and the third unzips the bottom. the two halves of the bag can be completely separated; but you cannot make two separate bags. **Q: Can this sleeping bag be machine washed?** A: My sons fell apart the first time we washed it in extra large washer on cold. Bummer. He saved for 6 months for the bag. **Q: How do you store your bag? There is no earthly way I can get it back in the stuff sack it came in. I could barely get it out of the stuff sack. Help!** A: I found out the hard way how to get it in the storage bag. First I tried with the sleeping bag zipped together, what a pain, then I unzipped the sleeping bag and put one half in at a time and was able to do it with no help. Just work your way around and push down as far as you can. It will fit. **Q: how well does this bag compress? can someone give specific dimensions. I want to know how much luggage space it takes.** A: About 3.5' tall and 16" in diameter. The sleeping bag is difficult to compress back into the carry case. What I did was go to Walmart to get some straps to help compress the bag, this seemed to aide the problem. However, you will find that even after that it can still be difficult to get the sleeping bag in the case. Lastly, if you are looking to buy this sleeping bag you can't go wrong; overall this is a really great sleeping bag. Its comfortable, has some head support, and the coolest feature is the added shoulder flap to keep warm during cold camping nights. You won't regret buying it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Roomy, Warm, Comfy - and bulky (but good for car camping) *by S***T on December 2, 2017* Lots of room, nice and warm, and very comfy interior! We bought this for a 4 day camping trip in November, and it worked great! My wife actually questioned why we hadn't bought a double sleeping bag sooner. It is big, so be aware, this isn't something you're going to backpack in - it is strictly for car camping. It has a nice compression bag that it comes in, but since we have a camping trailer, we put it into a large (108 qt) Plano tote; it fills the entire tote up. Warm enough that I had to sleep with it unzipped most of the night (we bought the +20 temp). I have no complaints, and I've been a camper my whole life. ### ⭐⭐⭐⭐⭐ THIS IS ONE AWESOME SLEEPING BAG. BUT.... *by K***A on June 2, 2022* I'm really glad with this purchase. It has mega room. It's very warm. Haven't tried it at 20 degree rating yet, I'm confident base on how it did on a few 30+ degree nights. The inside feels very cozy. Regarding the padded neck baffle, this is strictly for when using as single individual bags when separated from being a double. But it didn't seem bothersome at all to us using as a double, which is mainly why I bought it. So everything about this bag is absolutely great....BUT.... Unless your name is Bruce Banner and you're in your anger state, don't count on getting this thing back into it's storage bag easily. In fact, it's also pretty tough getting out initially too. But since I didn't buy it for how easy or not it is to roll back up into it's storage bag, I simply bought a larger draw-string duffel sack to put it in, and that did the trick, very easy with no hassle. I guess I could also unzip them, and store them as individual bags like the one I previously used for many years. ### ⭐⭐⭐⭐ Soft, warm, fluffy- packing bag TOO SMALL *by C***Y on October 7, 2023* This bag came the day before a last-minute camping trip, so I did not have time to wash prior. I slept in it with my toddler and we both kept very warm with lows of 40 degrees. We slept on a Klymit insulated inflatable mat, so I can’t say it was the only thing that kept us warm because we were protected from the ground. I also threw a blanket over the top with a sheet for my dogs to snuggle into so their nails wouldn’t scratch or snag the bag. Pros: It came without any odor and fluffed up very quickly and was so cozy and warm and luxurious. I slept with bare feet and they stayed plenty warm. Cons: Just 1, but it’s significant- It took FOREVER to get the sleeping bag out of the carrying bag it was packed in. It was the hardest bag I’ve ever had to remove a sleeping bag from. I read the reviews where people said they were struggling with it and thought, well…maybe they’re being dramatic. They weren’t. It’s a shame because this sleeping bag would likely receive more 5 star reviews, but for my experience, they sadly lose a whole star simply because of the packing bag design, it’s terrible, and there was not the slightest hope I could ever stuff this sleeping bag back inside the packing bag. I did a practice run the night before to make sure I could do it and it was such a waste of time. I ended up just using the packing bag to stuff all our winter gear into and used the purple sheet in the picture to tie the sleeping bag up in by the 4 corners. That stupid looking ball rode passenger in an SUV and nearly touched the ceiling. I don’t even know where to look or what to buy to store the sleeping bag- it is a fat, large, super fluffy sleeping bag. If anyone has found something they like for it, I hope they’ll include it in their reviews. Was it worth it? For sure. I love the bag. Would be singing its praises were it possible to store it in the bag in came in. So now, on to find a solution so this sleeping bag can be my go-to for years to come. ## Frequently Bought Together - TETON Mammoth, 20 Degree and 0 Degree Sleeping Bags, Double Sleeping Bag, A Warm Bag the Whole Family can Enjoy. Great Sleeping Bag for Camping, Hunting and Base Camp. Compression Sack Included - TETON Sports Sleeping Bag Liner; A Clean Sheet Set Anywhere You Go; Perfect for Travel, Camping, and Anytime You’re Away from Home Overnight; Machine Washable; Travel Sheet Set for Your Sleeping Bag - TETON Sports Camp Pillow; Great for Travel, Camping and Backpacking; Washable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/18236172-celsius-mammoth-20f](https://www.desertcart.co.uk/products/18236172-celsius-mammoth-20f) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-20*